package tk.mybatis.springboot.share.util;


import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ConnectException;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import net.sf.json.JSONException;
import net.sf.json.JSONObject;
import tk.mybatis.springboot.wexin.Manager.MenuManager;
import tk.mybatis.springboot.wexin.Manager.MyX509TrustManager;
import tk.mybatis.springboot.wexin.bean.AccessToken;
import tk.mybatis.springboot.wexin.bean.Userinfo;

public class WeixinUtil {
	private static Logger log = LoggerFactory.getLogger(WeixinUtil.class);

	// 第三方用户唯一凭证
	private static String appId = "wx0009e7d7a664484d";
	// 第三方用户唯一凭证密钥
	private static String appSecret = "324076216949e1ae13e9d7bb2b02722a";
    // 获取access_token的接口地址（GET） 限200（次/天）
    public final static String access_token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";
    
    // 菜单创建（POST） 限100（次/天）
    public static String menu_create_url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=ACCESS_TOKEN";
    
    public static String news_create_url = "https://api.weixin.qq.com/cgi-bin/material/batchget_material?access_token=ACCESS_TOKEN";
    
    public static String custom_create_url = "https://api.weixin.qq.com/customservice/kfaccount/add?access_token=ACCESS_TOKEN";
    
    //网页授权的access_token
    public static String access_token_url2 = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code";

    
    public static String userinfo_url = "https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID&lang=zh_CN";
    /**
     * 创建菜单
     * 
     * @param menu 菜单实例
     * @param accessToken 有效的access_token
     * @return 0表示成功，其他值表示失败
     */
    public static int createMenu(String accessToken) {
        int result = 0;
        // 拼装创建菜单的url
        String url = menu_create_url.replace("ACCESS_TOKEN", accessToken);
        // 将菜单对象转换成json字符串
        String json = JSONObject.fromObject(MenuManager.getMenu()).toString();
        // 调用接口创建菜单
        JSONObject jsonObject = httpRequest(url, "POST", json);
        if (null != jsonObject) {
            if (0 != jsonObject.getInt("errcode")) {
                result = jsonObject.getInt("errcode");
                log.error("创建菜单失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
            }
        }

        return result;
    }

    public static AccessToken getAccessToken(String code) {
    	AccessToken accessToken = null;
        String url = access_token_url2.replace("APPID", appId);
        url = url.replace("SECRET", appSecret);
        url = url.replace("CODE", code);
        JSONObject jsonObject = httpRequest(url, "POST", null);
        if (null != jsonObject) {
            try {
                accessToken = new AccessToken();
                accessToken.setToken(jsonObject.getString("access_token"));
                accessToken.setExpiresIn(jsonObject.getInt("expires_in"));
                accessToken.setOpenid("openid");
                accessToken.setRefresh_token("refresh_token");
                accessToken.setScope("scope");
            } catch (JSONException e) {
                accessToken = null;
                // 获取token失败
                log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
            }
        }
        return accessToken;
    }

    public static Userinfo getUserinfo(AccessToken accessToken) {
    	Userinfo userinfo = null;
        String url = userinfo_url.replace("ACCESS_TOKEN", accessToken.getToken());
        url = url.replace("OPENID", accessToken.getOpenid());
        JSONObject jsonObject = httpRequest(url, "POST", null);
        if (null != jsonObject) {
            try {
            	userinfo = new Userinfo();
            	userinfo.setCountry(jsonObject.getString("country"));
            	userinfo.setHeadimgurl(jsonObject.getString("headimgurl"));
            	userinfo.setNickname(jsonObject.getString("nickname"));
            	userinfo.setOpenid(jsonObject.getString("openid"));
            	userinfo.setPrivilege(jsonObject.getString("privilege"));
            	userinfo.setProvince(jsonObject.getString("province"));
            	userinfo.setSex(jsonObject.getString("sex"));
            	//userinfo.setUnionid(jsonObject.getString("unionid"));
            } catch (JSONException e) {
            	userinfo = null;
                // 获取token失败
                log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
            }
        }
        return userinfo;
    }
    
    public static int createCustom(String accessToken) {
        int result = 0;
        // 拼装创建菜单的url
        String url = custom_create_url.replace("ACCESS_TOKEN", accessToken);
        // 将菜单对象转换成json字符串
        String json = "{\"kf_account\" : \"test1@gh_f81d970a80aa\",\"nickname\" : \"客服1\"}";
        // 调用接口创建菜单
        JSONObject jsonObject = httpRequest(url, "POST", json);

        return result;
    }
    
    public static int getNews(String accessToken) {
        int result = 0;
        // 拼装创建菜单的url
        String url = news_create_url.replace("ACCESS_TOKEN", accessToken);
        // 将菜单对象转换成json字符串
        String jsonMenu = "{\"type\":\"news\",\"offset\":0,\"count\":20}";
        // 调用接口创建菜单
        JSONObject jsonObject = httpRequest(url, "POST", jsonMenu);
        Object str = jsonObject.get("item");
        System.out.println(accessToken);

        return result;
    }
    
    /**
     * 获取access_token
     * 
     * @param appid 凭证
     * @param appsecret 密钥
     * @return
     */
    public static AccessToken getAccessToken() {
        AccessToken accessToken = null;
        String requestUrl = access_token_url.replace("APPID", appId).replace("APPSECRET", appSecret);
        JSONObject jsonObject = httpRequest(requestUrl, "GET", null);
        // 如果请求成功
        if (null != jsonObject) {
            try {
                accessToken = new AccessToken();
                accessToken.setToken(jsonObject.getString("access_token"));
                accessToken.setExpiresIn(jsonObject.getInt("expires_in"));
            } catch (JSONException e) {
                accessToken = null;
                // 获取token失败
                log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
            }
        }
        return accessToken;
    }
    
    
    /**
     * 描述:  发起https请求并获取结果
     * @param requestUrl 请求地址
     * @param requestMethod 请求方式（GET、POST）
     * @param outputStr 提交的数据
     * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
     */
    public static JSONObject httpRequest(String requestUrl, String requestMethod, String outputStr) {
        JSONObject jsonObject = null;
        StringBuffer buffer = new StringBuffer();
        try {
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化
            TrustManager[] tm = { new MyX509TrustManager() };
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
            sslContext.init(null, tm, new java.security.SecureRandom());
            // 从上述SSLContext对象中得到SSLSocketFactory对象
            SSLSocketFactory ssf = sslContext.getSocketFactory();

            URL url = new URL(requestUrl);
            HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
            httpUrlConn.setSSLSocketFactory(ssf);

            httpUrlConn.setDoOutput(true);
            httpUrlConn.setDoInput(true);
            httpUrlConn.setUseCaches(false);
            
            // 设置请求方式（GET/POST）
            httpUrlConn.setRequestMethod(requestMethod);

            if ("GET".equalsIgnoreCase(requestMethod))
                httpUrlConn.connect();

            // 当有数据需要提交时
            if (null != outputStr) {
                OutputStream outputStream = httpUrlConn.getOutputStream();
                // 注意编码格式，防止中文乱码
                outputStream.write(outputStr.getBytes("UTF-8"));
                outputStream.close();
            }

            // 将返回的输入流转换成字符串
            InputStream inputStream = httpUrlConn.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

            String str = null;
            while ((str = bufferedReader.readLine()) != null) {
                buffer.append(str);
            }
            bufferedReader.close();
            inputStreamReader.close();
            // 释放资源
            inputStream.close();
            inputStream = null;
            httpUrlConn.disconnect();
            jsonObject = JSONObject.fromObject(buffer.toString());
        } catch (ConnectException ce) {
            log.error("Weixin server connection timed out.");
        } catch (Exception e) {
            log.error("https request error:{}", e);
        }
        return jsonObject;
    }
}
